User name Templon
Log entry time 16:45:26 on October22,2000
Entry number 50742
keyword=more cqw-2b replayHere is about 8 hrs of data (1/4 the sample so far). Still inconclusive.
Problem is that we should expect somewhere between 0.1 to 0.05 as
many counts to the left of the hole, as to the right of the hole (if it is
there). The count rate to the left of the hole (peak rate) is about 35, which
means we expect somewhere between 1 and 4 counts per bin near
pm=500 MeV/c given these statistics. Indeed this is what we have,
so the error bar is close to 100% and we cannot make a conclusive
statement about whether a rise is seen, or not. More data are being
replayed as I type, and a cache request for the older data here has
also been submitted.
.
The histo in the UL panel is the real-gated pm histo from the sum of runs
1957,1959,1963,1964, and 1966. The UR panel is Joe's MCEEP detection
volume run for 2bbu into pmiss spectrum (no acceptance cuts).
LL is the linear-scale quotient (yield / det.vol.). LR is the same but
plotted on a log scale.
.
We will continue in these kinematics until 11 PM tonight and hope for
stable beam.
FIGURE 1
